The chairman of the board that governs Connecticut's public four- and two-year colleges has rescinded a proposed buyout that officials of the public-college system purportedly offered[1] to presidents of the state's community colleges last month. That incident, which infuriated some of the two-year-college leaders, triggered a series of events that led to the resignations[2] of the top two officials of the Connecticut State Colleges and Universities system, President Robert A. Kennedy and Michael Meotti, the executive vice president. "The Board has not authorized any such arrangement and to the extent such an arrangement was offered at that time or thereafter, it is hereby rescinded," Lewis J. Robinson, chairman of the Board of Regents for Higher Education, said in an e-mailed statement late Tuesday.